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5-6 Software installation overview
Reentry points
553-4011-110 Standard 1.0 November 1994
NAC 2 software has four installation reentry points that can be used if a
problem occurs during the software installation. If a software installation
must be aborted at some point, the installation can be restarted from the last
successfully completed section of the installation. For example, if an
installation had to be aborted after the OS files had been copied to the hard
disk, but before the application files were copied, the installer can skip over
the successfully copied OS files and go to the point just before the
application files were copied.
Note: The system only displays the reentry points available for your
installation. You cannot skip steps that were not successfully
completed.
Check your error log and system messages when the software installation
procedure is complete to ensure no errors were reported. If you want to use
a reentry point, check that no errors were reported within the steps you
want to skip. If you are unsure, restart the installation from the beginning.
If the errors persist, contact your Northern Telecom distributor.
If an error message appears on the screen, perform a graceful shutdown of
the system. The system provides prompts and messages for the shutdown.
The reentry points for a NAC 2 system are
1
From the beginning
2
Prior to copying the OS files to the hard disk
3
Prior to copying the NAC application files to the hard disk
4
Prior to booting from the hard disk
For more information on software reinstallations, software upgrades, and
application upgrades, refer to the "Software reinstallations and upgrades"
chapter.
WARNING
Graceful system shutdown
If the system is shut down improperly,
unpredictable results may occur.
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